diff --git a/code/controllers/subsystem/blackbox.dm b/code/controllers/subsystem/blackbox.dm
index 0877ba66c6..08ef5a28b0 100644
--- a/code/controllers/subsystem/blackbox.dm
+++ b/code/controllers/subsystem/blackbox.dm
@@ -187,7 +187,7 @@ Versioning
 						"gun_fired" = 2)
 */
 /datum/controller/subsystem/blackbox/proc/record_feedback(key_type, key, increment, data, overwrite)
-	if(sealed || !key_type || !istext(key) || !isnum(increment) || !data)
+	if(sealed || !key_type || !istext(key) || !isnum(increment || !data))
 		return
 	var/datum/feedback_variable/FV = find_feedback_datum(key, key_type)
 	switch(key_type)